Skate board wheel truck

Abstract

The wheel truck for a skateboard has a concave curvilinear lower surface with a similar shaped axle. The axle is cast within the wheel truck. The distal wheel ends of the axle have their center line along the same plane. The wheel truck can be cast of aluminum, plastic or any other suitable material. The axle is formed of a material different than the truck casting and when cast within the truck casting provides increased support to the concave curvilinear surface of the wheel truck.

What I claim is: 
     
       1. A wheel truck for a skateboard, said skateboard having a platform and a wheel truck mounting means fixedly attached thereto for attachment of said wheel truck to the skateboard lower surface, said mounting means allowing limited relative movement between the wheel and the platform, said wheel truck comprising: a body portion having a lower surface and an axle being cylindrical along an entire of the axle permitting a wheel to be mounted on each end thereof;   said axle having a central portion being cast within said body portion adjacent said lower surface, said axle having end portions extending from said body portion sufficiently for carrying wheels thereon;   said lower surface of said body portion having a concave curvilinear shape between and elevated above said wheel axle end portions along said concave curvilinear shape; and   said central portion of said axle is formed in substantially the same shape as said body portion concave curvilinear lower surface and extending between and elevated above said end portions along concave curvilinear shape, said central portion of said axle is fully enclosed by the body portion;   wherein, the concave curvilinear lower surface of the body portion is engageable with an upper surface of an elongated rail for permitting the skateboard to travel along the rail.   
     
     
       2. The invention as defined in claim 1 wherein said body portion is cast from aluminum. 
     
     
       3. The invention as defined in claim 1 wherein said body portion is cast from epoxy. 
     
     
       4. The invention as defined in claim 1 wherein said body portion is cast from plastic. 
     
     
       5. The invention as defined in claim 1 wherein said axle is curved between the end portions and said end portions are along the same plane.